A Rhodamine Derivative Based Chemosensor with High Selectivity and Quick Respond to Cr3+ in Aqueous Solution

A Rhodamine Derivative Based Chemosensor with High Selectivity and Quick Respond to Cr3+ in... In this paper, a new kind of colorimetric chemsensor aiming at detecting Cr3+ has been synthesized, and it is based on the “Off-On” effect of a rhodamine derivative. Comparing with other metal irons (Na+, K+, Ni2+, Hg2+, Fe3+, Mn2+, Co2+, Cd2+, Cu2+, Pb2+, Zn2+, Mg2+, Ba2+, Ag+, Fe2+, Ce3+), the chemsensor has a quick and accurate response to Cr3+ in H2O-EtOH solution (4/1, v/v). There is an obvious change in color, from colorless to bright pink when Cr3+ is detected. According to the fitting curve based on Benesi-Hildebrand equation and working curve of absorption strength in UV-vis spectrum, the binding pattern of Cr3+ and the rhodamine derivative follows a 1:1 stoichiometry. The chemsensor shows great potential in monitoring Cr3+ in the aqueous medium with high efficiency, which is supposed to complete the recognition in the minimum as 5.2 × 10−7 mol/L within 5 min. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Fluorescence Springer Journals

A Rhodamine Derivative Based Chemosensor with High Selectivity and Quick Respond to Cr3+ in Aqueous Solution

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Biomedicine; Biomedicine, general; Biological and Medical Physics, Biophysics; Biotechnology; Biochemistry, general; Analytical Chemistry
ISSN
1053-0509
eISSN
1573-4994
D.O.I.
10.1007/s10895-018-2243-2
Publisher site
See Article on Publisher Site

Abstract

In this paper, a new kind of colorimetric chemsensor aiming at detecting Cr3+ has been synthesized, and it is based on the “Off-On” effect of a rhodamine derivative. Comparing with other metal irons (Na+, K+, Ni2+, Hg2+, Fe3+, Mn2+, Co2+, Cd2+, Cu2+, Pb2+, Zn2+, Mg2+, Ba2+, Ag+, Fe2+, Ce3+), the chemsensor has a quick and accurate response to Cr3+ in H2O-EtOH solution (4/1, v/v). There is an obvious change in color, from colorless to bright pink when Cr3+ is detected. According to the fitting curve based on Benesi-Hildebrand equation and working curve of absorption strength in UV-vis spectrum, the binding pattern of Cr3+ and the rhodamine derivative follows a 1:1 stoichiometry. The chemsensor shows great potential in monitoring Cr3+ in the aqueous medium with high efficiency, which is supposed to complete the recognition in the minimum as 5.2 × 10−7 mol/L within 5 min.

Journal

Journal of FluorescenceSpringer Journals

Published: May 28, 2018

References

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